Wastewater Operator certification Study Guide-Grade 2 Already Passed

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Wastewater Operator certification Study Guide-Grade 2 Already Passed General Wastewater Treatment: What is the pressure head caused by? ✔✔Water elevation General Wastewater Treatment: What co... lor should the piping be that contains reclaimed water? ✔✔purple General Wastewater Treatment: What is the term for the height to which a column of water will rise in a well. ✔✔piezometric surface General Wastewater Treatment: In general, what is the maximum practical lift of pumps ✔✔15-25ft General Wastewater Treatment: Which one of the following valves is the best to use in throttling a flow situation? a. gate b. butterfly c. globe d. ball ✔✔globe General Wastewater Treatment: Which one of the following devices is used to measure water depths in storage facilities? a. transducer b. Venturi meter c. magnetic sensor d. thermistor ✔✔transducer Wastewater Treatment Facilities: The velocity in sanitary sewers is approximately: ✔✔2 ft/s Wastewater Treatment Facilities: The distance between manholes ranges from ✔✔300-500ft Wastewater Treatment Facilities: What should the flow velocity be through a grit channel ✔✔1.0 ft/s Wastewater Treatment Facilities: Grit washers are used to______ a. remove some of the organic matter b. remove large pieces of wood c. remove rags and eggshells d. remove the odors ✔✔remove some of the organic matter Wastewater Treatment Facilities: The most common flow-measure device for wastewater is a_____ ✔✔parshall flume Wastewater Treatment Facilities: The detention time for primary clarifiers usually has a range of_____hr/s ✔✔1.5-2hr Wastewater Treatment Facilities: The effluent from which process is called mixed liquor [Show More]

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